Use on a 4 in. Vent check valve
A replaceable item designed to provide a stationary seating surface for a mating, moveable item such as a valve disk or the like. The body may have a flange of various shapes. For diesel and gasoline reciprocating engines, see insert, engine valve seat.
Classification: Parts of taps, cocks, valves and similar appliances, nesoi
NSN 5998-00-515-2252
NSN 5990-01-457-9386
NSN 5895-01-554-5457
NSN 6620-01-501-8649
NSN 4140-00-795-3747
NSN 6645-00-492-9487
NSN 5990-00-284-0537
NSN 5920-00-045-4211
NSN 5990-01-595-9441
NSN 5985-01-586-3329
NSN 5930-01-239-6771
NSN 5960-00-402-7564